Oh wow, it sounds great! Maybe I will join the pool and test it now. Thank you once again for this tip!
Edit: I have started mining on NiceHash now, as an experiment: https://www.nicehash.com/index.jsp?p=miners&addr=1LrDVBYuNq6MkKj9uXkikDhHWtg9QEnJdG
We will see how it goes. Please wish me luck! :)